zephyr/drivers/clock_control/clock_stm32g0.c
Erwan Gouriou d04802283b drivers/clock_control: stm32 common: Don't disable fixed clocks
Each clock should be configured individually by device tree,
don't disable them blindly.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2022-04-21 14:09:44 +02:00

47 lines
1 KiB
C

/*
*
* Copyright (c) 2019 Ilya Tagunov
* Copyright (c) 2019 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <soc.h>
#include <stm32_ll_bus.h>
#include <stm32_ll_rcc.h>
#include <stm32_ll_utils.h>
#include <drivers/clock_control.h>
#include <sys/util.h>
#include <drivers/clock_control/stm32_clock_control.h>
#include "clock_stm32_ll_common.h"
#if STM32_SYSCLK_SRC_PLL
/* Macros to fill up multiplication and division factors values */
#define z_pll_div(v) LL_RCC_PLLM_DIV_ ## v
#define pll_div(v) z_pll_div(v)
#define z_pllr(v) LL_RCC_PLLR_DIV_ ## v
#define pllr(v) z_pllr(v)
/**
* @brief Fill PLL configuration structure
*/
void config_pll_init(LL_UTILS_PLLInitTypeDef *pllinit)
{
pllinit->PLLN = STM32_PLL_N_MULTIPLIER;
pllinit->PLLM = pll_div(STM32_PLL_M_DIVISOR);
pllinit->PLLR = pllr(STM32_PLL_R_DIVISOR);
}
#endif /* STM32_SYSCLK_SRC_PLL */
/**
* @brief Activate default clocks
*/
void config_enable_default_clocks(void)
{
/* Enable the power interface clock */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
}